The villages P, Q, R and S are situated, not necessarily in that order, on a long straight road. The distance from P to R is 75km, the distance from Q to S is 45km and the distance from Q to R is 20km. Which of the following could not be the distance, in km, from P to S?
Select one option, then click Submit.
10
50
80
100
140
Select an option, then submit.
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